Pipe stand



FIG. 1 is a front perspective view of a pipe stand showing my newdesign;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side elevational view, the right side being a mirrorimage thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a front elevational view thereof; and

FIG. 6 is a rear elevational view thereof.

The ornamental design for a pipe stand, substantially as shown anddescribed.